UHF Dipole Stacked Arrays
Price on application
Hi-Tec Aerials UHF shrouded dipole stacked arrays combine two or four rugged PRO-SHDU dipoles with a power divider for an omnidirectional gain antenna that can be configured to suit the site. They are built for harsh environments and need minimal hardware.
- PRO-SHDU-SA3: 2 dipoles and a PD2 divider, 3 dBd omni or 6 dBd offset, 200 W
- PRO-SHDU-SA6: 4 dipoles and a PD4 divider, 6 dBd omni or 9 dBd offset, 400 W
- 400–505 MHz, 50 MHz bandwidth, RG213 feed
- End mount clamps fit a 48 mm tube or screw to a wooden pole
- Downtilt available with delay lines. Enquire for pricing
Flexible gain from proven dipoles
A stacked array lets you build the coverage pattern your site needs from rugged individual dipoles. Mount the dipoles around a mast for omnidirectional coverage, or offset them to one side to push more gain in a chosen direction. Each dipole is a PRO-SHDU with a UV-protected PVC radome and a centre feed taken through a tee on a 38 mm OD × 3 mm anodised boom, with the RG213 coax run down the centre. The dipoles are joined by a Hi-Tec power divider.
Two configurations
- PRO-SHDU-SA3: 2 × PRO-SHDU dipoles and 1 × PD2 power divider. 3 dBd omnidirectional, 6 dBd with offset, 200 W.
- PRO-SHDU-SA6: 4 × PRO-SHDU dipoles and 1 × PD4 power divider. 6 dBd omnidirectional, 9 dBd with offset, 400 W.
Each dipole has an end mount clamp that clamps to a vertical 48 mm OD tube or screws to a wooden pole. Pair it with a rigging pipe clamp on pole sites. Downtilt can be built in by adding delay lines to the feed system.
Enquire for a quote
Stacked arrays are configured and priced for each site. Contact us with your frequency, required coverage and mounting structure and we'll put together a quote. For a single antenna, see the UHF shrouded dipole, the 3 dBd shrouded dipole or our UHF collinears. Signals NZ and Hi-Tec Aerials supply, install and service radio sites across New Zealand, and fit lightning protection.
Specifications
| Model | PRO-SHDU-SA3 | PRO-SHDU-SA6 |
|---|---|---|
| Number of dipoles | 2 | 4 |
| Power divider | PD2 | PD4 |
| Frequency range | 400–505 MHz | |
| Bandwidth | 50 MHz | |
| Omnidirectional gain | 3 dBd | 6 dBd |
| Gain with offset | 6 dBd | 9 dBd |
| Half power beamwidth, E plane | 27° | 13° |
| Impedance | 50 Ω | |
| Return loss / VSWR | < −14 dB / 1.5:1 | |
| Maximum power | 200 W | 400 W |
| Cable | RG213 | |
| Boom | 400 mm long, 38 mm diameter | |
| Projected area | 0.068 m² | 0.136 m² |
| Wind loading at 150 km/h | 75 N | 150 N |
| Weight | 4.2 kg | 8.4 kg |
| Mounting tube OD | 48 mm | |
Additional information
| Brand | Hi-Tec |
|---|---|
| Band | UHF |
| Models | PRO-SHDU-SA3 (2 dipoles, 3/6 dBd), PRO-SHDU-SA6 (4 dipoles, 6/9 dBd) |
| Frequency | 400–505 MHz |
| Pricing | Enquire for a quote |
